Hunan Minstrong Technology Co., Ltd, located in Changsha, Hunan Province, is a high-tech enterprise with high-performance catalyst research and development and manufacturing as its core business. Minstrong products involveHopcalite catalysts, carbon monoxide catalysts, ozone destruction catalysts, ozone filter destructor, VOC catalysts, and active manganese dioxide catalysts, activated copper oxide catalysts and other catalyst materials. The catalyst materials are are exported to all over the world, widely used in industrial tail gas treatment, water treatment, health care, electronic information, semiconductor and other industries.

Liaoyang Hongji Machinery Co., Ltd. is specialized in manufacturing pharmaceutical machinery, especially professional in Separator and Centrifuge technology and manufacturing. The company possesses rich technologies, advanced production facilities and perfect test measurements and has developed many high-tech products. It has got the quality certification of ISO9001: 2000. Because of the advanced technology and reliable quality, the performance of the products has reached the advanced international level of 21st century. The company has won the support and trust from the customers due to its good reputation, reliable quality and first-class after-sale service.